<template>
  <el-row :gutter="20">
    <el-col :span="6">
      <category @tree-node-click="treeNodeClick"></category>
    </el-col>
    <el-col :span="18">
      <div class="mod-config">
        <el-form :inline="true" :model="dataForm" @keyup.enter.native="getDataList()">
          <el-form-item>
            <el-input v-model="dataForm.key" placeholder="参数名" clearable></el-input>
          </el-form-item>
          <el-form-item>
            <el-button @click="getDataList()">查询</el-button>
            <el-button type="success" @click="getAllDataList()">查询全部</el-button>
            <el-button v-if="isAuth('product:attrgroup:save')" type="primary" @click="addOrUpdateHandle()">新增</el-button>
            <el-button v-if="isAuth('product:attrgroup:delete')" type="danger" @click="deleteHandle()" :disabled="dataListSelections.length <= 0">批量删除</el-button>
          </el-form-item>
        </el-form>
        <el-table :data="dataList" border v-loading="dataListLoading" @selection-change="selectionChangeHandle" style="width: 100%;">
          <el-table-column type="selection" header-align="center" align="center" width="50">
          </el-table-column>
          <el-table-column prop="attrGroupId" header-align="center" align="center" label="分组id">
          </el-table-column>
          <el-table-column prop="attrGroupName" header-align="center" align="center" label="组名">
          </el-table-column>
          <el-table-column prop="sort" header-align="center" align="center" label="排序">
          </el-table-column>
          <el-table-column prop="descript" header-align="center" align="center" label="描述">
          </el-table-column>
          <el-table-column prop="icon" header-align="center" align="center" label="组图标">
          </el-table-column>
          <el-table-column prop="catelogId" header-align="center" align="center" label="所属分类id">
          </el-table-column>
          <el-table-column fixed="right" header-align="center" align="center" width="150" label="操作">
            <template slot-scope="scope">
              <el-button type="text" size="small" @click="relationHandle(scope.row.attrGroupId)">关联</el-button>
              <el-button type="text" size="small" @click="addOrUpdateHandle(scope.row.attrGroupId)">修改</el-button>
              <el-button type="text" size="small" @click="deleteHandle(scope.row.attrGroupId)">删除</el-button>
            </template>
          </el-table-column>
        </el-table>
        <el-pagination @size-change="sizeChangeHandle" @current-change="currentChangeHandle" :current-page="pageIndex" :page-sizes="[10, 20, 50, 100]" :page-size="pageSize" :total="totalPage" layout="total, sizes, prev, pager, next, jumper">
        </el-pagination>
        <!-- 弹窗, 新增 / 修改 父组件监听子组件的refreshDataList事件-->
        <add-or-update v-if="addOrUpdateVisible" ref="addOrUpdate" @refreshDataList="getDataList"></add-or-update>
        <!-- 修改关联关系 -->
        <relation-update v-if="relationVisible" ref="relationUpdate" @refreshData="getDataList"></relation-update>
      </div>
    </el-col>
  </el-row>
</template>

<script>
/**
 * 父子组件传递数据
 * 1、子组件给父组件传递数据，事件机制；
 *   子组件给父组件发送一个事件，携带上数据
 *   this.$emit("事件名", 携带的数据...);
 * 
 * 
 * 2、父组件给子组件传递数据，？
 */
import Category from "../common/category"
import AddOrUpdate from "./attrgroup-add-or-update"
import RelationUpdate from "./attr-group-relation";
export default {
  components: {
    Category, 
    AddOrUpdate,
    RelationUpdate
  },
  data() {
    return {
      catId: 0,
      dataForm: {
        key: ''
      },
      dataList: [],
      pageIndex: 1,
      pageSize: 10,
      totalPage: 0,
      dataListLoading: false,
      dataListSelections: [],
      addOrUpdateVisible: false,
      relationVisible: false
    }
  },
  activated() {
    this.getDataList()
  },
  methods: {
    getAllDataList(){
      this.catId = 0;
      this.getDataList();
    },
    // 获取数据列表
    getDataList() {
      this.dataListLoading = true
      this.$http({
        url: this.$http.adornUrl(`/product/attrgroup/list/${this.catId}`),
        method: 'get',
        params: this.$http.adornParams({
          'page': this.pageIndex,
          'limit': this.pageSize,
          'key': this.dataForm.key
        })
      }).then(({ data }) => {
        if (data && data.code === 0) {
          this.dataList = data.page.list
          this.totalPage = data.page.totalCount
        } else {
          this.dataList = []
          this.totalPage = 0
        }
        this.dataListLoading = false
      })
    },
    // 感知树节点被点击（接收子组件事件）
    treeNodeClick(data, node, component) {
      console.log("父组件attrgroup感知到子组件category的节点被点击：", data, node, component);
      console.log("刚才被点击的菜单id: " + data.catId);
      if(node.level == 3){
        this.catId = data.catId;
        this.getDataList();
      }else{
        this.catId = 0;
      }
    },
    //处理分组与属性的关联
    relationHandle(groupId) {
      this.relationVisible = true;
      this.$nextTick(() => {
        this.$refs.relationUpdate.init(groupId);
      });
    },
    // 每页数
    sizeChangeHandle(val) {
      this.pageSize = val
      this.pageIndex = 1
      this.getDataList()
    },
    // 当前页
    currentChangeHandle(val) {
      this.pageIndex = val
      this.getDataList()
    },
    // 多选
    selectionChangeHandle(val) {
      this.dataListSelections = val
    },
    // 新增 / 修改
    addOrUpdateHandle(id) {
      this.addOrUpdateVisible = true
      this.$nextTick(() => { //组件显示完成后触发
        this.$refs.addOrUpdate.init(this.catId,id);
      })
    },
    // 删除
    deleteHandle(id) {
      var ids = id ? [id] : this.dataListSelections.map(item => {
        return item.attrGroupId
      })
      this.$confirm(`确定对[id=${ids.join(',')}]进行[${id ? '删除' : '批量删除'}]操作?`, '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      }).then(() => {
        this.$http({
          url: this.$http.adornUrl('/product/attrgroup/delete'),
          method: 'post',
          data: this.$http.adornData(ids, false)
        }).then(({ data }) => {
          if (data && data.code === 0) {
            this.$message({
              message: '操作成功',
              type: 'success',
              duration: 1500,
              onClose: () => {
                this.getDataList()
              }
            })
          } else {
            this.$message.error(data.msg)
          }
        })
      })
    }
  }
};
</script>